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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-debug-as debug
var exception = null;
var Debug = debug.Debug;
var break_count = 0;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
var source = exec_state.frame(0).sourceLineText();
print(source);
assertTrue(source.indexOf(`// B${break_count++}`) > 0);
if (source.indexOf("assertEquals") > 0) {
exec_state.prepareStep(Debug.StepAction.StepNext);
} else {
exec_state.prepareStep(Debug.StepAction.StepIn);
}
} catch (e) {
exception = e;
print(e);
}
};
Debug.setListener(listener);
function f() {
var a, b, c, d;
debugger; // B0
[ // B1
a, // B2
b, // B3
c = 3 // B4
] = [1, 2];
assertEquals({a:1,b:2,c:3}, {a, b, c}); // B5
[ // B6
a, // B7
[
b, // B8
c // B9
],
d // B10
] = [5, [6, 7], 8];
assertEquals({a:5,b:6,c:7,d:8}, {a, b, c, d}); // B11
[ // B12
a, // B13
b, // B14
...c // B15
] = [1, 2, 3, 4];
assertEquals({a:1,b:2,c:[3,4]}, {a, b, c}); // B16
({ // B17
a, // B18
b, // B19
c = 7 // B20
} = {a: 5, b: 6});
assertEquals({a:5,b:6,c:7}, {a, b, c}); // B21
({ // B22
a, // B23
b = return1(), // B24
c = return1() // B25
} = {a: 5, b: 6});
assertEquals({a:5,b:6,c:1}, {a, b, c}); // B28
({ // B29
x : a, // B30
y : b, // B31
z : c = 3 // B32
} = {x: 1, y: 2});
assertEquals({a:1,b:2,c:3}, {a, b, c}); // B33
} // B34
function return1() {
return 1; // B26
} // B27
f();
Debug.setListener(null); // B35
assertNull(exception);